Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Narrative (Details)

v2.4.1.9
Commitments and Contingencies - Narrative (Details) (USD $)
In Millions, unless otherwise specified
11 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2014
Jan. 31, 2013
Commitments and Contingencies Disclosure [Abstract]      
Rent expenses $ 5.7us-gaap_OperatingLeasesRentExpenseNet $ 8.6us-gaap_OperatingLeasesRentExpenseNet $ 3.2us-gaap_OperatingLeasesRentExpenseNet
Deferred rent 9.4us-gaap_DeferredRentCredit 15.3us-gaap_DeferredRentCredit  
Non-cancelable royalty related contractual obligation, recoupable against future royalty payments   5.0p_PurchaseObligationRecoverable  
Non-cancelable royalty related contractual obligation, not recoupable against future royalty payments   $ 5.0us-gaap_PurchaseObligation